ffmpeg | branch: master | Li, Zhong <zhong...@intel.com> | Fri Dec 1 16:48:45 2017 +0800| [6ff29343b01923e9b125fe7404ac8701cdfb1fe5] | committer: Maxym Dmytrychenko
lavc/qsvenc: set HRD buffer size Hypothetical Reference Decoding (HRD) model assumes that data flows into a buffer of the fixed size BufferSizeInKB with a constant bitrate. Smaller BufferSizeInKB means smaller frame size variations, but more difficult to maintain HRD. Signed-off-by: Zhong Li <zhong...@intel.com> Signed-off-by: Maxym Dmytrychenko <maxim....@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6ff29343b01923e9b125fe7404ac8701cdfb1fe5 --- libavcodec/qsvenc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c index 9db9eb375c..f6034c443d 100644 --- a/libavcodec/qsvenc.c +++ b/libavcodec/qsvenc.c @@ -503,6 +503,7 @@ static int init_video_param(AVCodecContext *avctx, QSVEncContext *q) #if QSV_HAVE_VCM case MFX_RATECONTROL_VCM: #endif + q->param.mfx.BufferSizeInKB = avctx->rc_buffer_size / 8000; q->param.mfx.InitialDelayInKB = avctx->rc_initial_buffer_occupancy / 1000; q->param.mfx.TargetKbps = avctx->bit_rate / 1000; q->param.mfx.MaxKbps = avctx->rc_max_rate / 1000; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
